go/src/cmd/compile/internal/ssa/regalloc_test.go
Keith Randall 02f4d0a130 [dev.ssa] cmd/compile: start arguments as spilled
Declare a function's arguments as having already been
spilled so their use just requires a restore.

Allow spill locations to be portions of larger objects the stack.
Required to load portions of compound input arguments.

Rename the memory input to InputMem.  Use Arg for the
pre-spilled argument values.

Change-Id: I8fe2a03ffbba1022d98bfae2052b376b96d32dda
Reviewed-on: https://go-review.googlesource.com/16536
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
2015-11-03 17:29:40 +00:00

32 lines
732 B
Go

// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package ssa
import "testing"
func TestLiveControlOps(t *testing.T) {
c := testConfig(t)
f := Fun(c, "entry",
Bloc("entry",
Valu("mem", OpInitMem, TypeMem, 0, ".mem"),
Valu("x", OpAMD64MOVBconst, TypeInt8, 0, 1),
Valu("y", OpAMD64MOVBconst, TypeInt8, 0, 2),
Valu("a", OpAMD64TESTB, TypeBool, 0, nil, "x", "y"),
Valu("b", OpAMD64TESTB, TypeBool, 0, nil, "y", "x"),
If("a", "if", "exit"),
),
Bloc("if",
If("b", "plain", "exit"),
),
Bloc("plain",
Goto("exit"),
),
Bloc("exit",
Exit("mem"),
),
)
regalloc(f.f)
checkFunc(f.f)
}